沿海某电厂二期工程循环水管埋设的区域由三类不良地质构成 ,压力管道通过地段土大部分为高含水量、高压缩性、高灵敏度的饱和软粘土。工程实施的土钉墙方案 ,成功地解决了饱和软粘土和流砂土中施工大型管道很难控制周边变形的难题 ,确保了电厂正常的安全生产。 The area covered by the circulating water pipes of the second phase of a power plant in the coastal area is composed of three types of poor geology. Most of the soil passing through the pressure pipe is saturated soft clay with high water content, high compressibility and high sensitivity. The project of soil nailing wall program, successfully solved the saturated soft clay and flowing sand large pipe construction is difficult to control the surrounding deformation problems, to ensure the normal power plant safety.